A challenge for all....

Discussion in 'Math' started by susi, Jun 6, 2004.

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  1. susi

    Thread Starter Active Member

    Jun 4, 2004
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    isotope_3@hotmail.com


    hi freindzz,

    m having a gr8 trouble in solving these questions..actually m not dat gud in Integration( I thought i was)...newayz help me in solving or atleast gimme the hint how to solve it..

    Solve the Exact Differential Equations:

    1) ( 1 + lnx + y/x) dx + ( cosx + xcosy)dy = 0

    2) {( 1/x + 1/(x^2 )- y/[(x^2)+(y^2)]}dx + { y(e^2) + x /[( x^2)+(y^2)]}dy = 0


    Can any expert of differential equations solve these difficult questions??...

    I know the methology its:

    1st condition > ∂M/∂y=∂N/∂x
    2nd condition > ∂f/∂x=M , ∂f/∂y=N

    but cant solve these question...It is a challenge for all out there..if u can do it!.
    waiting for a response,
    susi
     
  2. Dave

    Retired Moderator

    Nov 17, 2003
    6,960
    144
    Locked due to thread duplication.

    Thanks,

    Dave
     
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